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Advanced Materials

Direct Covalent Assembly to Fabricate Microcapsules with Ultrathin Walls and High Mechanical Strength

Authors

  • Z. Feng,

    1. Key Laboratory of Macromolecule Synthesis and Functionalization, Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University Hangzhou 310027 (P.R. China)
    2. Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027 (P.R. China)
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  • Z. Wang,

    1. Key Laboratory of Macromolecule Synthesis and Functionalization, Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University Hangzhou 310027 (P.R. China)
    2. Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027 (P.R. China)
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  • C. Gao,

    1. Key Laboratory of Macromolecule Synthesis and Functionalization, Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University Hangzhou 310027 (P.R. China)
    2. Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027 (P.R. China)
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  • J. Shen

    1. Key Laboratory of Macromolecule Synthesis and Functionalization, Ministry of Education, Department of Polymer Science and Engineering, Zhejiang University Hangzhou 310027 (P.R. China)
    2. Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027 (P.R. China)
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  • We thank Q. H. Zhao, W. J. Tong for their beneficial discussion and help. Professor B. Yang and K. Han are acknowledged for their help on colloidal particle fabrication. This study is financially supported by the NSFC (20434030), the Major State Basic Research Program of China (2005CB623902) and the National Science Fund for Distinguished Young Scholars of China (50425311). Supporting Information is available online from Wiley InterScience or from the authors.

Abstract

Direct covalent LBL assembly was performed on silica particles using PGMA and PAH as the building blocks. After core removal, hollow microcapsules with ultrathin shells and good shell completeness were obtained. The microcapsules have good mechanical strength and stability against extreme pHs and elevated temperature too.

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